118 lines
3.3 KiB
C
118 lines
3.3 KiB
C
/*
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* Copyright (c) 1983 The Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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char copyright[] =
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"@(#) Copyright (c) 1983 The Regents of the University of California.\n\
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All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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/*static char sccsid[] = "from: @(#)fingerd.c 5.6 (Berkeley) 6/1/90";*/
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static char rcsid[] = "$Id: fingerd.c,v 1.2 1993/08/01 18:30:56 mycroft Exp $";
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#endif /* not lint */
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#include <stdio.h>
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#include "pathnames.h"
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main()
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{
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register FILE *fp;
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register int ch;
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register char *lp;
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int p[2];
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#define ENTRIES 50
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char **ap, *av[ENTRIES + 1], line[1024], *strtok();
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#ifdef LOGGING /* unused for now */
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#include <netinet/in.h>
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struct sockaddr_in sin;
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int sval;
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sval = sizeof(sin);
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if (getpeername(0, &sin, &sval) < 0)
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fatal("getpeername");
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#endif
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if (!fgets(line, sizeof(line), stdin))
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exit(1);
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av[0] = "finger";
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for (lp = line, ap = &av[1];;) {
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*ap = strtok(lp, " \t\r\n");
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if (!*ap)
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break;
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/* RFC742: "/[Ww]" == "-l" */
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if ((*ap)[0] == '/' && ((*ap)[1] == 'W' || (*ap)[1] == 'w'))
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*ap = "-l";
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if (++ap == av + ENTRIES)
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break;
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lp = NULL;
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}
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if (pipe(p) < 0)
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fatal("pipe");
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switch(fork()) {
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case 0:
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(void)close(p[0]);
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if (p[1] != 1) {
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(void)dup2(p[1], 1);
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(void)close(p[1]);
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}
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execv(_PATH_FINGER, av);
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_exit(1);
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case -1:
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fatal("fork");
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}
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(void)close(p[1]);
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if (!(fp = fdopen(p[0], "r")))
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fatal("fdopen");
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while ((ch = getc(fp)) != EOF) {
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if (ch == '\n')
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putchar('\r');
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putchar(ch);
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}
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exit(0);
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}
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fatal(msg)
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char *msg;
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{
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extern int errno;
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char *strerror();
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fprintf(stderr, "fingerd: %s: %s\r\n", msg, strerror(errno));
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exit(1);
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}
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